Head-light for locomotives



(No Model.)

J.*KIRBY, Jr. HEAD LIGHTl PoR LOGOMOTIVBS. No. 268,027. f PatentedfNov'.28', 1882.

inventor: 2% /M/ /f e. /f a @W4 UNITED STATES PATENT OFFICE.

JOHN KIEEY, JE., on LUDLow, KENTUCKY, AssICNoE To PosT a Co., oCINCINNATI, CHIC. l l

HEAD-LIGHT FOR LOCOMOTIVES.

SPECIFICATION forming part of Letters Patent No. 268,027dated November28, 1882. Application led October 16, 188:2. (No model.)

To all whom it may concern:

Beit known that I, JOHN KIRBY, Jr., ofLudlow, Kenton county,State ofKentucky, have invented certain n ew and useful ImprovementsV inHead-Lights for Locomotives, Vof

which the following is a speeitication, referlence being had to theaccom pauyin g drawings, forming part of this specification, in which-Figure l is a section on line x a; Vin Fig. 3. Io Fig. 2 is a view ofhead-light case, showing signal-box F and colored signal-globe E. Fig. 3is a view-of head-light case, showing signalbox F, with coloredsignal-plate f audtnumber-platej'. Fig. tis a section showing ver- I 5tical smoke-Hue G.

Similar letters of reference in the'several drawings indicate the sameparts.

The object of my invention is to display signals or signal-numbers inthe case of a headzo light for locomotives in such a manner that theymay be seen from two or more sides. I accomplish this by constructing acase with a roof, C, whose top or cap is a box, F, and placing thereontransparencies, which may be 25 numbered or colored, or both. Acoloredhollow glass cylinder, E, Fig. 2, may be displayed above said box F,illuminated by the same light that illuminates the transparencies. Iprefer, however, to display number-signals 3o and colored signals in thebox by placing the number-plates in the lower divisioinf", ot' the box Fand the colored plates in the upper division, f; or the cclored platesmay be placed in the lower division and the number-plates in the upperdivision.

The light't'or illuminating the signals cornes primarily from the lamp,the rays of which impinge on a relector, L, Figs. l and 3, placed beyondthe month ot' the reflector K in the 4o rini N of the Case. This reectorL is set so that the angle of incidenceof the rays ot' light from thelamp to the reflector is such that the angleot' reflection shall throwthem directly into box F. a

To assist in getting the full strength of the light, I place a plate, A,of any suitable material, of a width not less than the width of box F,above the reector K, supporting it at one end near the front edge ofreflector K, and at 5o the other on the edge of box F farthest from thereflector L. The edges of this plate may be turned up. This plate, withthe side B of roof C, constitutes what I call a signal-light chamben7and may be of any substance4 and color that tend to improve the lightthrown 5 5' into box F. Plate A is shown, in Fig. 1 and in dotted linesin Figs. 3 and 2. This signallight chamber may be made in tubular form;but I prefer the form shown as more economical. The results ofcombustion in the lamp 6o are carried oft' by a vertical flue, Gr, Fig.4, provided it does not pass through the box F, or may be carried oft'by 4a horizontal ue, H, Fig.v 1.

The box F may be closed at the bottom and illuminated by a lamp. In thisevent the reector L and plate A need not be used.

It will beseen by reference to the drawings that the box F is protectedfrom the heat and smoke of the lamp, and that the signals are 7o not soliable to be smoked up as they are in lIead-lights in which they areplaced on the sides ot' the open case and exposed to the smoke of aneglected burner. III this construction the smoke is practically shutoutof the A box F.

It is difficult to see signals as ordinarily placed on the side of therim of the case, from `in front, on account ot' the glare of light fromthe head-light reector. This trouble is obvi- 8o ated by placing thesignals in box F on top of lthe roof C.

I do not claim broadly the placing of signals in the top of the case ofa locomotive headlight. 8 5

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is as follows:

1. A head-light case having a roof, C, divided' by a partition to formtwo chambers, 9o one a signal-light chamber and the other a chamberthrough which the products of combustion can pass to a suitable exit, asset forth.

2. A head-light case formed with aroof, C, having a signal-box above thepartition-plate 9 5 A, lwhich plate extends from the rear of the boxtoward the f1 ont of the reflector, and an opening in rear of thepartition-plate for the passage ofthe products ot' combustion.

The foregoing specication of my invention roo signed by Ine thisllth dayof October, A. D. 1882.

JOHN KIRBY, JR.

Witnesses:

JEPTHA GAREAED, v RICHARD L. AYER.

